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Type	Originator	Title	Date
	Maitre,R. W. le	A Classification of Igneous Rocks and Glossary of Terms	1989
	Darne,F & Tordjman,P	A Travers le Karst	1991
	CNCC	CNCC Rigging Guide Vol 2 Version 3	2012
	Parein,Rene	Guide Speleo des Montes de Vaucluse	1990
	Davies,G	Minera	1964
	Habe,F	Postojna	1976
	International Union of Speleology	Speleological Abstracts	1994